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1,018,242

1,018,242 is a composite number, even.

This number doesn't have a permanent NumberWiki page yet — what you see below is computed live. Pages get added to the permanent index when they're notable (years, primes, curated, etc.).

1,018,242 (one million eighteen thousand two hundred forty-two) is an even 7-digit number. It is a composite number with 12 divisors, and factors as 2 × 3² × 56,569. Its proper divisors sum to 1,187,988, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF8982.

Abundant Number Cube-Free Harshad / Niven Moran Number Odious Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
18
Digit product
0
Digital root
9
Palindrome
No
Bit width
20 bits
Reversed
2,428,101
Square (n²)
1,036,816,770,564
Cube (n³)
1,055,730,382,092,628,488
Divisor count
12
σ(n) — sum of divisors
2,206,230
φ(n) — Euler's totient
339,408
Sum of prime factors
56,577

Primality

Prime factorization: 2 × 3 2 × 56569

Nearest primes: 1,018,223 (−19) · 1,018,247 (+5)

Divisors & multiples

All divisors (12)
1 · 2 · 3 · 6 · 9 · 18 · 56569 · 113138 · 169707 · 339414 · 509121 (half) · 1018242
Aliquot sum (sum of proper divisors): 1,187,988
Factor pairs (a × b = 1,018,242)
1 × 1018242
2 × 509121
3 × 339414
6 × 169707
9 × 113138
18 × 56569
First multiples
1,018,242 · 2,036,484 (double) · 3,054,726 · 4,072,968 · 5,091,210 · 6,109,452 · 7,127,694 · 8,145,936 · 9,164,178 · 10,182,420

Sums & aliquot sequence

As a sum of two squares: 651² + 771²
As consecutive integers: 339,413 + 339,414 + 339,415 254,559 + 254,560 + 254,561 + 254,562 113,134 + 113,135 + … + 113,142 84,848 + 84,849 + … + 84,859
Aliquot sequence: 1,018,242 1,187,988 1,584,012 2,112,044 2,097,364 1,573,030 1,258,442 740,314 378,566 224,074 114,326 57,166 29,738 14,872 18,068 13,558 6,782 — unresolved within range

Continued fraction of √n

√1,018,242 = [1009; (12, 1, 1, 6, 1, 2, 2, 27, 4, 1, 1, 5, 1, 3, 2, 1, 2, 43, 1, 1, 143, 1, 1, 1, …)]

Representations

In words
one million eighteen thousand two hundred forty-two
Ordinal
1018242nd
Binary
11111000100110000010
Octal
3704602
Hexadecimal
0xF8982
Base64
D4mC
One's complement
4,293,949,053 (32-bit)
Scientific notation
1.018242 × 10⁶
As a duration
1,018,242 s = 11 days, 18 hours, 50 minutes, 42 seconds
In other bases
ternary (3) 1220201202200
quaternary (4) 3320212002
quinary (5) 230040432
senary (6) 33454030
septenary (7) 11440431
nonary (9) 1821680
undecimal (11) 636025
duodecimal (12) 411316
tridecimal (13) 298614
tetradecimal (14) 1c7118
pentadecimal (15) 151a7c

As an angle

1,018,242° = 2,828 × 360° + 162°
162° ≈ 2.827 rad
Compass bearing: SSE (south-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零一萬八千二百四十二
Chinese (financial)
壹佰零壹萬捌仟貳佰肆拾貳
In other modern scripts
Eastern Arabic ١٠١٨٢٤٢ Devanagari १०१८२४२ Bengali ১০১৮২৪২ Tamil ௧௦௧௮௨௪௨ Thai ๑๐๑๘๒๔๒ Tibetan ༡༠༡༨༢༤༢ Khmer ១០១៨២៤២ Lao ໑໐໑໘໒໔໒ Burmese ၁၀၁၈၂၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1018242, here are decompositions:

  • 19 + 1018223 = 1018242
  • 41 + 1018201 = 1018242
  • 151 + 1018091 = 1018242
  • 223 + 1018019 = 1018242
  • 283 + 1017959 = 1018242
  • 353 + 1017889 = 1018242
  • 383 + 1017859 = 1018242
  • 443 + 1017799 = 1018242

Showing the first eight; more decompositions exist.

Hex color
#0F8982
RGB(15, 137, 130)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.137.130.

Address
0.15.137.130
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.137.130

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Possible date

Could be parsed as a date. Most likely interpretation: Saturday, January 1, 8242 (MDDYYYY (US, single-digit month)).

Other possible interpretations (2)
  • 8242-10-01 (MMDYYYY (US, single-digit day))
  • 8242-01-10 (DDMYYYY (Euro, single-digit month))
Possible US patent number

This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 1,018,242 and was likely granted around 1911.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.

Related reading

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.